Microphone



FIG. 1 is a top perspective view of a microphone;

FIG. 2 is a left-side elevational view thereof, the right-side view being a mirror image of the left side view;

FIG. 3 is a rear view thereof, the front view being a mirror image of the rear view;

FIG. 4 is a top plan view thereof; and,

FIG. 5 is a bottom plan view thereof.

The broken lines in the drawings are provided to show features or boundaries that form no part of the claimed design. 

CLAIM The ornamental design for a microphone, as shown and described. 